| 摘要 |
A description is given of a wear-resistant roller for crushing of particulate material, such as crude ore for use in the mineral industry, which wear-resistant roller comprises a plurality of grooves (5) in the crushing surface of the roller (2) and at least one element (6) of wear-resistant material placed in each groove (5), where the element(s) (6) of wear-resistant material is composed of a material which is harder than the material of the roller (2). The roller press is characterized in that welding material (7), introduced directly into each groove (5), surrounds and secures the element(s) (6) of wear-resistant material in each groove (5). In this way it will be relatively easy and fast to manufacture a wear-resistant roller and it will be possible to repair the roller at site as there are no particular demands to the precision of the grooves or the wear elements. Therefore ordinary hand tools can be used to repair the roller. Furthermore various shapes of wear resistant elements, also without any particular demands to precision, can be used as they to a certain degree are independent of the shape and form of the groove.
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